Service manual
Schematic Diagrams
B - 20
Schematic Diags
ICH5 (2 of 2)
Sheet 19 of 39
ICH5 2/2
VDD3
VDD5
VCC1.5S
VCOREVBAT
VCC1.5S
VCC1.5S
VCC3S
VDD3
VCC3S
VCORE
VCC1.5S
VBAT
VBAT
VDD3
VCC3
VCC3S
VCC5S
VCC3S
3VH8
VCC3S
VDD3
VREF5V
CLK66_ICH_HUB
AC_SDOUT
HL0
AC_SDIN0
HL7
HL3
AC_BCLK
HL1
HL4
HUBREF
HLSTBS
HL9
HLSTBF
HL8
HL2
ICHCOMP
HL6
AC_RST#
HUBSWING
HL5
AC_SDIN1
HL11
HL10
HL[0..10]
OC2#
OC0#
USBP1-
USBP2+
USBP5+
USBP2-
USBP1+
USBP3+
USBP5-
USBP0-
CLK48_USB
USBP6+
USBP3-
USBP0+
OC1#
USBP4+
USBP4-
USBP6-
USBRBIAS
HL11
HUBSWING
HUBREF
AC_SDIN0
AC_SDIN1
ICHCOMP
RTC_RST#
GATERST#
A20GATE
KB_GA20
USBP7+
USBP7-
BAT1
BATTERY
C286
0.1U
Q5
2N3904
B
E
C
T191
C247
0.1U
C199 0.1U R244 10K
R277
1K
C254
0.1U
C271
0.1U
C299
0.1U
T172
R221 1K
C270
0.01U
C714 0.1U
R550 33_1%
T177
C263
0.1U
C249
0.1U
C325
0.1U
C262
10U/10V(0805)
T186
R520 62
R206 100K
R525 10K
C251
0.01U
C200
10U/10V(0805)
T180
R519 22.6_1%
C253
0.1U
C324
1U
BGA11E
SPDG ICH5
F6
G1
H6
K6
L6
M10
N10
P6
R13
V19
W15
W17
W24
AD13
AD20
G19
G21
E18
B15
E11
F10
F11
E13
E14
U6
V6
F16
F17
F18
K15
A8
W14
E16
AD11
K10
K12
K13
L19
P19
R10
R6
H24
J19
K19
M15
N15
N23
E15
F15
F14
W19
R12
W9
W10
W11
W6
W7
W8
AA6
AB6
C24
F19
Y5
AA4
AB4
F7
F8
E22
R15
R19
T19
B5
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCC3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
VCCSUS3_3
V5REF
V5REF
V5REF_SUS
VCCRTC
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCC1_5
VCCSATAPLL
VCCSATAPLL
VCCUSBPLL
VCCSUS1_5
VCCSUS1_5
VCCSUS1_5
VCCSUS1_5
VCCSUS1_5
VCCSUS1_5
VCC1_5
V_CPU_IO
V_CPU_IO
V_CPU_IO
VCC3_3
C227
10U/10V(0805)
T176
T179
D18 SCS751
A C
C296
0.1U
C252
0.1U
D12 1SS355
A C
T178
C284
0.01U
C255
0.1U
C265
0.01U
T181
R544 100K
T368
C226 0.1U
C715 0.1U
C260
0.1U
Q29
BSS138
G
D S
T171
T370
C264
0.1U
R538 100K
BGA11F
SPDG ICH5
A1
A10
A15
A17
A19
A21
A23
A7
AA11
AA13
AA21
AA24
AA5
AA7
AA9
AB11
AB15
AB18
AB5
AB7
AB9
AC10
AC13
AC2
AC23
AC4
AC6
AC8
AD17
AD21
AD12
AD4
AD6
AD8
B13
B17
B19
B21
B23
C16
C18
C20
C22
C3
C8
D1
D11
D16
D18
D20
D22
D24
D6
E17
E19
E20
E21
E23
F3
F9
G20
G24
G6
H1
H19
H22
J21
J23
J6
K11
K14
K20
K22
K24
K3
L10
L11
L12
L13
L14
L15
L21
L23
M1
M11
M12
M13
M14
M22
M24
M5
N11
N12
N13
N14
N20
P1
P10
P11
P12
P13
P14
P15
P21
R11
R14
T23
T3
T6
U19
V1
V21
W16
W18
Y10
Y3
Y6
Y7
Y8
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
R536 100K
C250
0.01U
C261 0.1U
C225
0.1U
R170 0
R278
180K
T369
R166 1K
C268
10U/10V(0805)
C759
1U
C266
0.1U
C272
0.1U
T367
C248
0.01U
R207 10K(R)
R521
52.3_1%
C210
10U/10V(0805)
C285
0.1U
R216 10K
C765
10U/10V(0805)
C283
0.01U
HUB LINK
LAN
AC'97
USB I/F
BGA11B
SPDG ICH5
H20
H21
J20
H23
M23
M21
N21
M20
L22
J22
K21
G22
K23
J24
N24
L20
L24
N22
C10
C9
C11
D9
E9
B12
D10
E10
AA1
B11
B10
A12
B9
B8
C12
A9
E12
D12
A13
D8
C23
D23
A22
C21
D21
A20
B20
C19
D19
A18
B18
C17
D17
A16
B16
B22
C15
D15
D14
C14
B14
A14
D13
C13
A24
B24
F24
HI0
HI1
HI2
HI3
HI4
HI5
HI6
HI7
HI8
HI9
HI10
HI11
HI_STBF
HI_STBS
HIRCOMP
HI_VSWING
HIREF
CLK66
LAN_RXD0
LAN_RXD1
LAN_RXD2
LAN_TXD0
LAN_TXD1
LAN_TXD2
LAN_RSTSYNC
LAN_CLK
LAN_RST#
EE_DIN
EE_CS
EE_SHCLK
EE_DOUT
AC_SYNC
AC_RST#
AC_SDOUT
AC_SDIN0
AC_SDIN1
AC_SDIN2
AC_BIT_CLK
USBP0P
USBP0N
USBP1P
USBP2P
USBP2N
USBP3P
USBP3N
USBP4P
USBP4N
USBP5P
USBP5N
USBP6P
USBP6N
USBP7P
USBP7N
USBP1N
OC0#
OC1#
OC2#
OC3#
OC4#/GPI9
OC5#/GPI10
OC6#/GPI14
OC7#/GPI15
USBRBIAS
USBRBIAS#
CLK48
D19 SCS751
A C
C267
0.1U
R524 10K
R539 100K
HL[0..10][6]
AC_BCLK[22,23]
HLSTBS[6]
CLK66_ICH_HUB[5]
HUBREF[6]
HUBSWING[6]
AC_RST#[22,23]
AC_SDOUT[22,23]
AC_SDIN0[23]
AC_SYNC[22,23]
AC_SDIN1[22]
HLSTBF[6]
USBP0+ [20]
USBP0- [20]
USBP1+ [20]
USBP2+ [20]
USBP2- [20]
USBP3+ [20]
USBP3- [20]
USBP4+ [20]
USBP4- [20]
USBP1- [20]
OC0# [20]
OC2# [20]
CLK48_USB [5]
OC1# [20]
USBP5+ [20]
USBP5- [20]
USBP6+ [20]
USBP6- [20]
RTC_RST# [18]
PCIRST# [6,11,18,22,25,27,28]
GATED_PCIRST# [18]
GATERST#[21,27,28,29,30,31]
KB_GA20 [28]
A20GATE [18]
USBP7+ [22]
USBP7- [22]
These pins need to be
separarted power
plane
ICH5-2
ICH5-5
ICH5-6
CLOSE TO ICH5
RTC Circuitry